jQuery OOP basics

Question

I want to start developing jQuery games, thus I need to learn jQuery OOP. I have some (enough) experience with C++ OOP (developed some games).

I know that I can rep

Answer 1

OOP is very much not the same in all programming languages. Objects in C++ are instances of classes, and classes are an entirely compile-time construct. Javascript doesn't have classes, all it has are objects.

It is possible to use Javascript in ways that act similarly to classes, using scoping rules, prototype chains and the special "this" reference, but these are idioms that are imposed on the language, not part of the language. And there are quite a few different class-style idioms in common use, and untold numbers of self-invented ones.

In my mind, the critical differences between javascript and C++/C#/Java/etc., are best understood by exploring the scoping rules. What variables are in scope at any point in the code, and what object the special "this" reference is pointing to, when, are what it is critical to understand, when trying to work with javascript.